Common Ground adaptor



FIG. 1 is a front elevational view of a common ground adaptor showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front, top perspective view of the receptacle, the plug is omitted for convenience of illustration;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view of the plug, the receptacle omitted for convenience of illustration;

FIG. 7 is a rear, top perspective view of the receptacle, the plug is omitted for convenience of illustration;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view of the plug, the receptacle is omitted for convenience of illustration;

FIG. 10 is a rear, top perspective view of a second embodiment thereof, the second embodiment is similar to the original embodiment except for the additional cap positioned over the rear ground terminal; and,

FIG. 11 is a side elevational view thereof, the other side being a mirror image. 

The ornamental design for a common ground adaptor, as shown and described. 